Working Method.
Koolen didn't like to paint from a photo. Sometimes he used photographs only for clothing if the sitter had less time for the sessions.
Even children he painted preferably live however sometimes it required a lot of patience.



Child 1

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Child with her favorite doll (Maddy Jongen), oil on canvas, 1943



Child 2



Lucas with ball, oil on canvas, 1953



Child 3



Child in white dress (Mabel Reesink), Oil on canvas, 1949 (present existence unknown)




Child 4


Lucas with toy blocks and fruit, oil on canvas, 1952